U028C

Lost Communication With Active Grille Air Shutter Module D

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$33–133 (est.)

Symptoms

Check Engine Light Is On
Reduced engine cooling efficiency
Possible increase in fuel consumption
Malfunction of the active aerodynamics system
Lack of response to grille control commands

Causes

Open or short circuit in the module circuit
Active grille module D fault
Problems with the wiring connector
Engine control unit malfunction
Corroded contacts or damaged wiring harness

How to Fix

Check the integrity of the wires to the active grid module
Check module connections and connectors
Test the active grille module
Check the supply voltage and grounding of the module
If necessary, replace the active grille module

Related codes

U028A U028B U028D